Re: Optimize Arm64 crc32c implementation in Postgresql

From: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
To: Yuqi Gu <Yuqi(dot)Gu(at)arm(dot)com>
Cc: "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Optimize Arm64 crc32c implementation in Postgresql
Date: 2018-01-10 06:09:16
Message-ID: 20180110060916.GG336@paquier.xyz
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On Wed, Jan 10, 2018 at 05:58:19AM +0000, Yuqi Gu wrote:
> I would like to propose the patch to optimize crc32c calculation with
> Arm64 specific instructions. The hardware-specific code
> implementation is used under #if defined
> USE_ARMCE_CRC32C_WITH_RUNTIME_CHECK. And the performance is improved
> on platforms: cortex-A57, cortex-A72, cortex-A73, etc.
>
> I'll create a CommitFests ticket for this submission.
> Any comments or feedback are welcome.

Nice! I have not looked at your patch, but +1. There are not enough
patches for ARM.
--
Michael

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